Abstract— Cognitive radio (CR) has been considered as a frequency-efficient communication scheme to relive scarcity of limited, licensed frequency resources ...
This work investigates spatial cooperative diversity and spectrum sensing in terms of asynchrony, where the cognitive radio user with high signal-to-noise ...
Spectrum sensing is the key enabling technology for cognitive radio networks. The main objective of spectrum sensing is to provide more spectrum access ...
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Oct 21, 2024 · Our work proposes a novel data transformation to improve signal-to-noise ratio (SNR) in cognitive radio networks.
This article presents two asynchronous spectrum sensing schemes under non-cooperative and cooperative scenarios, respectively, and presents a distributed ...
Jan 28, 2016 · ... detection, therefore it is instrumental for a network of spatially diverse CRs to collaborate during the spectrum sensing. In this paper ...
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Cognitive radio (CR) relies on spectrum sensing to discover available frequency bands so that the spectrum can be used to its full potential, thus avoiding ...
Wideband sensing Conventional cooperative sensing exploits the spatial diversity of cooperating CR users and focuses on the sensing of one frequency band ...
In this paper, the state-of-the-art survey of cooperative sensing is provided to address the issues of cooperation method, cooperative gain, and cooperation ...
Cognitive radios can perform spectrum sensing, dynamically identify unused spectrum, and opportunistically utilize those spectrum holes for their own ...